Ik zag wat nieuws op de Heatsink Guide over heatsinks voor Intel's nieuwe SECC2 catridge design:
SECC2 is the name for the new design of future P2's faster than 450MHz. These do not have a a cardridge like current P2's, but rather look like a Celeron. However, neither Celeron nor current P2 heatsinks are compatible with SECC2. Heatsinks for SECC2 are a bit more tricky to manufacture, because they must be designed to have contact both with the CPU and the SRAM chips, since there is no thermal transfer plate on SECC2. Since the CPU and the cache chips have different heights, the lower side of the heatsink must not be flat (like on current P2 heatsinks), but rather have a special form to fit both CPU and cache chips. The fixation mechanism is similar to the Celeron.
Generally, it can be said that SECC2, (along with the new "Flip Chip" design of newer P2's) allows more efficient cooling than SECC1, both for the CPU and the cache chips. Heatsinks for SECC2 will be more expensive than current P2 heatsinks.
The first major heatsink manufacturer to have SECC2 coolers available seems to be Vantec. I will be receiving a sample; I'll post photos as soon as I have it. Other heatsink manufacturers also have plans for SECC2 heatsinks, of course, but I don't have any detailed info yet. Since no SECC2 CPU is available yet, it really isn't urgent :-). I have just received the new catalog from EKL GmBH, a smaller German heatsink manufacturer. They already offer SECC2 heatsinks, which apparently they manufacture themselves. Unfortunately they haven't posted the SECC2 pictures on their web site yet.